 Reference Base  Comparative aspects of steroid metabolism in rhinoceroses... |
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Hodges, J.K.; Hindle, J.E., 1988. Comparative aspects of steroid metabolism in rhinoceroses: implications for reproductive assessment: pp. 83-91, figs. 1-5
 | In: Dresser, B. et al. Proceedings of the 5th Internatioinal Conference on breeding endangered species in captivity. Cincinnati, Zoo and Botanical Garden: pp. i-xii, 1-722 |
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| Location: |
Captive - World |
| Subject: |
Captivity - Zoo Records |
| Species: |
White Rhino |
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With the possible exception of the Southern White, all species of rhinoceros are endangered in their natural habitat. Furthermore, captive populations of these species have yet to become sufficiently viable to provide a long term safeguard against continuing decline of numbers in the wild. The Black rhinoceros, for example, has experienced a 90% decline in the wild since the early 1970's, whilst the captive population, which numbers less than 180 individuals, has failed to increase over the past ten years. The Northern subspecies of White rhinoceros provides an even more extreme example, with a wild population of only 25-30, less than half this number in captivity and only a single female having bred. Ways of improving captive breeding performance of all rhinoceros species are urgently needed.
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